/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package controller.post;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import model.fbPost;
import model.fbSession;
import model.pojo.Post;

/**
 *
 * @author Yasith
 */
public class editExistingPost extends HttpServlet {
   
    /** 
    * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
    * @param request servlet request
    * @param response servlet response
    */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        
        Post cp = null;
        try{
        cp = fbPost.getPost(Integer.parseInt(request.getParameter("postId")));
        }catch(NumberFormatException ex){}
        
        fbSession fbs = (fbSession)request.getSession().getAttribute("fbSession");
        if((fbs != null)&&(cp!=null) && (cp.getUserID().equals(fbs.getUser()))){
            request.setAttribute("post", cp);
            request.getRequestDispatcher("editpost.jsp").forward(request, response);
        }else if(fbs==null){
            response.sendRedirect("login.jsp");
        }else if(cp==null){
            request.setAttribute("message", "post that you are trying to edit doesn't exsits(invalid post Id)");
            request.setAttribute("returnToURL", "index.jsp");
            request.getRequestDispatcher("message.jsp").forward(request, response);
        }else if(!cp.getUserID().equals(fbs.getUser())){
            request.setAttribute("message", "you donn't have permission to edit this post!");
            request.setAttribute("returnToURL", "index.jsp");
            request.getRequestDispatcher("message.jsp").forward(request, response);
        }else{
            request.setAttribute("message", "unexpected error please tell the admins!");
            request.setAttribute("returnToURL", "feedback.jsp");
            request.getRequestDispatcher("message.jsp").forward(request, response);
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
    * Handles the HTTP <code>GET</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
    * Handles the HTTP <code>POST</code> method.
    * @param request servlet request
    * @param response servlet response
    */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
    * Returns a short description of the servlet.
    */
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
